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【題目】現(xiàn)有一瓶接近飽和的硝酸鉀溶液,下列做法中不能使其變?yōu)轱柡腿芤旱氖牵?/span> )
A.加入硝酸鉀晶體 B.蒸發(fā)溶劑 C.升高溫度 D.降低溫度
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【題目】將0.5g某物質(zhì)在20℃時(shí)溶于10g水中即達(dá)飽和,則一般把這種物質(zhì)的溶解性劃分為( )
A.易溶物質(zhì) B.可溶物質(zhì) C.微溶物質(zhì) D.難溶物質(zhì)
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【題目】I have _________ uncle. He likes _________very much. He ______ soccer, baseball,volleyball, basketball, and so on. He plays baseball and basketball very_____. He likes to ____ the sports games ______TV. He plays sports_____.He often says, “Let’s_____…”He_____two clubs: a basketball club and a baseball club. He __ a sports collection. He has 12 tennis rackets, 10 baseballs, 3 volleyballs, 2 basketballs and one soccer ball.
【1】A. a B. an C. the D. is
【2】A. vegetables B. books C. music D. sports
【3】A. loves B. have C. joins D. play
【4】A. much B. more C. well D. good
【5】A. play B. plays C. watch D. watches
【6】A. in B. on C. to D. of
【7】A. everyday B. some day C. every day D. someday
【8】A. plays B. play C. playing D. to play
【9】A. joins B. plays C. asks D. takes
【10】A. have B. has C. doesn't have D. don’t have
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【題目】補(bǔ)全對(duì)話,每空一詞
A: Let's play computer games!
B: That sounds interesting,【1】I don't have 【2】 computer.
A: Well,【3】you have a volleyball?
B:【4】.
A: Then let's play volleyball.
B: Oh, volleyball is【5】difficult...
A: OK. Let's watch TV.
B: That sounds boring. Let's play soccer! Do you have a soccer【6】?
A: No, I【7】
B:Oh, well, do you have a【8】?
A: Yes,I do,【9】play basketball!
B:That【10】 fun!
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【題目】they, help, bed, bat, of, volleyball, room, play, for, have, think, ball
Grace is my friend. This is her【1】. In it, you can see her 【2】 everywhere. She 【3】a soccer ball under her chair, two 【4】under her desk and three basketballs under her 【5】. She also has some ping-pong balls and ping-pong 【6】 in her bag. Grace loves sports. She【7】they’re interesting. But she does not 【8】 them. Playing sports is difficult 【9】her. She only watches 【10】on TV.
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【題目】t℃時(shí)某物質(zhì)的溶解度100g,該溫度下,此物質(zhì)的飽和溶液中下列質(zhì)量關(guān)系正確的是( )
A、溶質(zhì):溶液=1:1 B、溶質(zhì):溶劑=1:1
C、溶劑:溶液=1:1 D、飽和溶液的質(zhì)量一定為200g
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【題目】下列有關(guān)溶液的說(shuō)法,不正確的是( )
A.蔗糖溶液是均一的、穩(wěn)定的混合物
B.硝酸鉀在20℃時(shí)溶解度是31.6g,則100g硝酸鉀溶液中含有硝酸鉀31.6g
C.在魚池中設(shè)立水泵,把水噴向空中可以增加水中氧氣的溶解量
D.冷卻或蒸發(fā)溶劑都能使接近飽和的氯化鈉溶液達(dá)到飽和
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【題目】(2013浙江溫州)It’s ________ to listen to light music when you feel tired(疲勞的).
A.dangerous
B.scary
C.relaxing
D.difficult
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【題目】—Let’s play___________ soccer.
—I don’t have_________ soccer ball.
A. /; a B. the; a
C. a; the D. /; /
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